[lworld] RFR: 8376171: [lworld] Enable storing the hash code in the mark word of value objects [v2]

[Stefan Karlsson]

On Mon, 26 Jan 2026 11:38:21 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> > Using non-casing setting of header bits is risky and even if it can be shown to be safe today it is limiting our possibilities poke around at the bits in the the future.
> 
> Okay, what should we do in the case when the CAS fails? Just try again?

That sounds reasonable to me.

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PR Comment: https://git.openjdk.org/valhalla/pull/1954#issuecomment-3799199226